1255443151 has 2 divisors, whose sum is σ = 1255443152. Its totient is φ = 1255443150.

The previous prime is 1255443131. The next prime is 1255443187. The reversal of 1255443151 is 1513445521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1255443151 - 2²⁷ = 1121225423 is a prime.

It is a super-2 number, since 2×1255443151² = 3152275010785617602, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1255443131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627721575 + 627721576.

It is an arithmetic number, because the mean of its divisors is an integer number (627721576).

Almost surely, 2^1255443151 is an apocalyptic number.

1255443151 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255443151 is an equidigital number, since it uses as much as digits as its factorization.

1255443151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12000, while the sum is 31.

The square root of 1255443151 is about 35432.2332206142. The cubic root of 1255443151 is about 1078.7786693761.

Adding to 1255443151 its reverse (1513445521), we get a palindrome (2768888672).

The spelling of 1255443151 in words is "one billion, two hundred fifty-five million, four hundred forty-three thousand, one hundred fifty-one".